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Period: to
Phonology: 0-12 Months
Birth-2 months: Reflexive Stage - Kaili makes reflexive sounds (sneezing, burping, coughing)
2 Months: Control of Phonation Stage - Infants begin producing vowel-like and nasalized sounds. Kaili makes cooing and gooing sounds, and also makes "raspberries"
3-8 Months: Expansion Stage - Infants gain more control of articulators and experiment with pitch. Kaili vocalizes squeals and babbles
11 Months: Advanced Form Stage - Kaili begins using jargon, using intonation and stress patterns -
Period: to
Semantics: 0-12 Months
Birth: Kaili startles in response to loud sounds. When someone sneezes, Kaili startles at the sound.
2 months: Explores the world through touch and sensation. Kaili briefly holds and mouths objects
6 months: Kaili imitates gestures (clapping hands, waving) and understands the word "no"
12 months: True Word. Kaili produces her first true word "mama" -
Period: to
Pragmatics: 0-12 Months
Birth - 6 months: Attends to social partners and briefly looks at others. Kaili makes eye contact with her mom as she talks to her
4 months: Holds gaze with others and recognizes her own name
6 months: Engages in joint attention - parents and infants share attention to an activity together. Kaili enjoys playing peek-a-boo with her parents -
First Word
Kaili says her first word, "mama." -
Period: to
Phonology: 12-36 Months
12-14 months: Kaili's speech is primarily unintelligible except for a few words. Kaili can say "mama," "dada," "uh-oh," and "bye"
16 months: 25% of speech is pronounced intelligibly
24 months: 65% of speech is pronounced intelligibly and she now asks questions with rising intonation
28 months: 70% of speech pronounced intelligibly; presence of phonological processes (common speech patterns of toddlers). Kaili says "wa-wa" when asking for water
34 months: Phonological processes suppressed -
Period: to
Semantics: 12-36 Months
16 months: Uses between 3 and 20 words. Kaili's vocabulary is expanding and uses mapping to learn new words.
20 months: Produces 50 words
24 months: Comprehends approx. 500 words
28 months: Overgeneralizes 1/3 of new words. Kaili overextends the word "dog" to all animals she sees.
34 months: Asks simple questions. "What's that?" -
Period: to
Pragmatics: 12-36 Months
12 months: Intentional communication (gestures). Kaili pulls on Mom or Dad's shirt to get attention
16 months: Verbal turn-taking. When talking with Grandma, Kaili will answer but doesn't ask questions
20 months: Uses gesture-word combinations to communicate. Kaili points and says "ball"
24 months: Imaginative and heuristic functions. Kaili likes to play princess and tell stories.
28 months: Short dialogues, introduces and changes topics
34 months: Clarifies, and requests clarification -
Period: to
Morphology: 12-36 Months
18 months: In Brown's Stage I, MLU approx. 1.31
20 months: Kaili begins using the progressive ending -ing. "Eating," "going," and "sleeping"
24 months: In Brown's Stage II, MLU approx. 1.93
28 months: Kaili begins using the plural ending -s. "Doggies," "toys," and "cars"
30 months: In Brown's Stage III, MLU approx. 2.86 -
Period: to
Syntax: 12-36 Months
16 months: Uses negation. Kaili uses the word "no" to reject or protest.
24 months: Two-word combinations. Kaili says "All done!" when finished doing something
30 months: Three element sentences. Kaili asks "Where Mommy going?" when she sees her mom get up to leave the room
36 months: Four element sentences. Kaili says "I want to do it" while helping her mom make cookies -
Vocabulary Spurt - 50 Word Mark
Kaili can now produce 50 words. -
Period: to
Syntax: 36-60 Months
36 months - Uses four to five words in sentences.
40 months - Uses pronouns consistently.
44 months - -
Period: to
Morphology: 36-60 Months
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Period: to
Semantics: 36-60 Months
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Period: to
Phonology: 36-60 months
36 months -
40 months -
44 months -
48 months -
53 months -
58 months -
